Given an unsorted array return whether an increasing subsequence of length 3 exists or not in the array.
Formally the function should: Return true if there existsi, j, k
such thatarr[i]<arr[j]<arr[k]given 0 ≤i<j<k≤n-1 else return false.
Your algorithm should run in O(n) time complexity and O(1) space complexity.
Examples: Given[1, 2, 3, 4, 5], return true.
Given[5, 4, 3, 2, 1], return false.
记录两个最小值， 如果有第三个值大于这两个最小值则返回true;
题目分析 Given an unsorted array return whether an increasing...
Description: Given an unsorted array return whether an in...
Given an unsorted array return whether an increasing subs...
Question Given an unsorted array return whether an increa...
Given an unsorted array return whether an increasing subs...
问题描述 Given an unsorted array return whether an increasing...
key tips 2个indicator
LeetCode 334. Increasing Triplet Subsequence Description ...
https://leetcode.com/problems/longest-increasing-subseque...
本文标题：334. Increasing Triplet Subseque
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